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首页> 外文会议>Global Symposium on Recycling, Waste Treatment and Clean Technology; 20040926-29; Madrid(ES) >POLYELECTROLYTE FROM EXPANDED POLYSTYRENE WASTE
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POLYELECTROLYTE FROM EXPANDED POLYSTYRENE WASTE

机译：聚苯乙烯废料中的聚电解质

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摘要

Sodium salt of poly(styrenesulfonate) acid (NaPSS) as anionic type polyelectrolyte was obtained during the sulfonation process using sulfuric acid as sulphonating agent and Ag_2SO_4 as catalyst. The products were precipitated in form of sodium salt in reaction with Na_2CO_3. Sodium salt of poly(styrenesulfonate) acid (NaPSS) has good flocculation properties. The influence of temperature and time of reaction on the properties of the products (1R spectra, intrinsic viscosity, elemental analysis) were studied. The obtained products of the reactions of sulfonation of expanded polystyrene wastes NaPSS were successfully used as flocculants in treatment of the model colloid system -ferrum (Ⅲ) hydroxide, which could be compared with industrial wastes such as water from mining companies. Application of these products caused a significant decrease of turbidity of examined solutions. It was also found that effectiveness of the flocculation process depends on the properties of the synthesized polyelectrolyte. The influence of the average molecular weight and sulfonate group content were observed.
机译：以硫酸为磺化剂，以Ag_2SO_4为催化剂，在磺化过程中得到了聚苯乙烯磺酸盐（NaPSS）钠盐为阴离子型聚电解质。与Na_2CO_3反应，产物以钠盐形式沉淀。聚（苯乙烯磺酸）酸的钠盐（NaPSS）具有良好的絮凝性能。研究了温度和反应时间对产物性能（1R光谱，特性粘度，元素分析）的影响。发泡聚苯乙烯废料的磺化反应所得产物NaPSS已成功用作絮凝剂处理模型胶体体系-氢氧化铁（Ⅲ），可与工业废料如采矿公司的水进行比较。这些产品的应用大大降低了所检查溶液的浊度。还发现絮凝过程的有效性取决于合成的聚电解质的性质。观察到平均分子量和磺酸根基团含量的影响。

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